NZ333254A - Data transmission of multi-level representation of a digital signal - Google Patents

Data transmission of multi-level representation of a digital signal

Info

Publication number
NZ333254A
NZ333254A NZ333254A NZ33325497A NZ333254A NZ 333254 A NZ333254 A NZ 333254A NZ 333254 A NZ333254 A NZ 333254A NZ 33325497 A NZ33325497 A NZ 33325497A NZ 333254 A NZ333254 A NZ 333254A
Authority
NZ
New Zealand
Prior art keywords
coded data
data transmission
digital signal
training sequence
level representation
Prior art date
Application number
NZ333254A
Inventor
Andrew Peter Heron
Original Assignee
British Telecomm
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British Telecomm filed Critical British Telecomm
Publication of NZ333254A publication Critical patent/NZ333254A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/025—Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

A transmitter has means to encode an input signal to form coded data, each element of the coded data having one of at least two discrete signal magnitude levels, the encoding means including in the coded data a periodic training sequence of data; and a receiver to receive the coded data and, on the basis of the received training sequence, to adapt a threshold or thresholds to allow the discrete levels to be distinguishable from each other. The training sequence may comprise a plurality of elements at least one of which, in turn, represents each one of the discrete signal levels. The receiver generates a look-up-table such as above to store the adapted thresholds.
NZ333254A 1996-06-25 1997-06-19 Data transmission of multi-level representation of a digital signal NZ333254A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP96304675 1996-06-25
PCT/GB1997/001660 WO1997050247A1 (en) 1996-06-25 1997-06-19 Data transmission

Publications (1)

Publication Number Publication Date
NZ333254A true NZ333254A (en) 2000-04-28

Family

ID=8224987

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ333254A NZ333254A (en) 1996-06-25 1997-06-19 Data transmission of multi-level representation of a digital signal

Country Status (9)

Country Link
EP (1) EP0908050B1 (en)
JP (1) JP3841832B2 (en)
CN (1) CN1119021C (en)
AU (1) AU717303B2 (en)
CA (1) CA2258171C (en)
DE (1) DE69728668T2 (en)
NO (1) NO986108D0 (en)
NZ (1) NZ333254A (en)
WO (1) WO1997050247A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6889351B1 (en) 2000-03-30 2005-05-03 Koninklijke Philips Electronics, N.V. Backward compatible multiple data stream transmission method and system for compressed domain signals
DE10213872A1 (en) * 2002-03-27 2003-10-16 Siemens Ag Method for improved data transmission in a transmission system with combined transmission formats uses frame segments with training sequences and transmission formats.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4367488A (en) * 1980-12-08 1983-01-04 Sterling Television Presentations Inc. Video Data Systems Division Data encoding for television
JPS60206390A (en) * 1984-03-30 1985-10-17 Pioneer Electronic Corp Detection and display device for digital data error block
FI89437C (en) * 1991-11-01 1993-09-27 Nokia Mobile Phones Ltd DIGITALDETEKTOR FOER ETT SOEKARANLAEGGNINGSYSTEM
US5255090A (en) * 1991-11-19 1993-10-19 Scientific-Atlanta, Inc. Progressive transmission of vector quantized data

Also Published As

Publication number Publication date
EP0908050B1 (en) 2004-04-14
CN1223769A (en) 1999-07-21
DE69728668D1 (en) 2004-05-19
NO986108L (en) 1998-12-23
JP3841832B2 (en) 2006-11-08
DE69728668T2 (en) 2005-03-17
WO1997050247A1 (en) 1997-12-31
AU717303B2 (en) 2000-03-23
AU3182697A (en) 1998-01-14
CA2258171C (en) 2005-05-17
CA2258171A1 (en) 1997-12-31
JP2001502478A (en) 2001-02-20
CN1119021C (en) 2003-08-20
NO986108D0 (en) 1998-12-23
EP0908050A1 (en) 1999-04-14

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